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Differences What are the advantages of each

Front view of Intel Pentium E6500K

Reasons to consider the
Intel Pentium E6500K

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Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Higher Maximum operating temperature 74.1 °C vs 71.4 °C Around 5% higher Maximum operating temperature
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Newer Jul, 2009 vs Aug, 2008 Release date 10 months later
Front view of Intel Core2 Quad Q9650

Reasons to consider the
Intel Core2 Quad Q9650

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More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing

Features Key features of the Pentium E6500K  vs Core2 Quad Q9650 

clock speed

L2 cache

overclocked clock speed (air)

Pentium E6500K
4.18 GHz
Core2 Quad Q9650
4.15 GHz

overclocked clock speed (water)

Pentium E6500K
4.17 GHz
Core2 Quad Q9650
4.25 GHz

Specifications Full list of technical specs

summary

Pentium E6500K  vs
Core2 Quad Q9650 
Clock speed 2.93 GHz 3 GHz
Cores Dual core Quad core
Socket type
LGA 775
Is unlocked Yes Yes

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 22.89 $/year
Annual commercial energy cost 56.94 $/year 83.22 $/year
Typical power consumption 52.81W 77.19W

details

Pentium E6500K  vs
Core2 Quad Q9650 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 2 MB 12 MB
L2 cache per core 1 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Transistor count 228,000,000 820,000,000
Max CPUs 1 1
Clock multiplier 11 9
Operating temperature Unknown - 74.1°C Unknown - 71.4°C

overclocking

Overclocked clock speed 4.18 GHz 4.15 GHz
Overclocked clock speed (Water) 4.17 GHz 4.25 GHz
Overclocked clock speed (Air) 4.18 GHz 4.15 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 1,333 MHz
Intel Pentium E6500K
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Intel Core2 Quad Q9650
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